Environmental and LTL Indicators MAB and Shelf-wide

Trend lines are shown when slope is significantly different from 0 at the p < 0.05 level. An orange line signifies an overall positive trend, and purple signifies a negative trend. Note that in the final report we will only test for trend when N >= 30. However, I have relaxed that requirement for the purposes of this document so that trends are highlighted when N >= 20. This means that some trends shown here will not be present in the final document. Dashed lines represent mean values of time series unless the indicator is an anomaly, in which case the dashed line is equal to 0. Shaded regions indicate the past ten years. If there are no new data for 2018, the shaded region will still cover this time period.

Mid-Atlantic Bight

Ocean Temperature

SST

MAB seasonal sea surface temperature time series overlaid onto 2019 seasonal spatial anomalies.

Bottom temperature

Annual bottom temperature in the Mid-Atlantic Bight.

Chlorophyll and Primary Productivity

Primary production

Monthly primary production trends show the annual cycle (i.e. the peak during the summer months) and the changes over time for each month.

Sesonal chlorophyll a & primary production

Weekly chlorophyll concentrations and primary productivity in the Mid-Atlantic are shown for by the colored line for 2019. The long-term mean is shown in black and shading indicates +/- 1 sample SD.

Chesapeake Bay Water Quality Attainment

Water quality attainment in Chesapeake Bay following rolling three year assessment periods.

Chesepeake Bay Salinity Anomolies

Write up on anomalies in salinity we saw in 2018,2019 following record breaking rain in 2018. The low salinities impacted hypoxia, fish and oysters.

Salinity in Chesapeake Bay throughout 2018 (blue) and 2019 (red) as well as the daily average 2008-2019 (black).

Zooplankton

Euphausiids + Cnidarians

Stratified abundance of cnidarians and euphausiids in Mid-Atlantic Bight.

Small and Large Calanoid stratified abundance

Abundance anomaly

Large (red) and small-bodied (blue) copepod abundance in the Mid-Atlantic Bight.

Small-large index

Zooplankton Diversity

Zooplankton diversity in the Mid-Atlantic Bight.

OI abundance

Cold Pool Index

Cold pool index - mean bottom temperature anomaly for Sept-Oct in the MAB.

Marine Heat Wave

Notes

Marine heatwave events (red) in the Mid-Atlantic occuring in 2019.

Marine heatwave cumulative intesity (left) and maximum intensity (right) in the Mid-Atlantic Bight.

Maximum intensity heatwave anomaly in the Mid-Atlantic Bight occuring on July 22, 2019.

Habitat Vulnerability

Council-managed or forage species that are highly dependent on (very) highly vulnerable habitats.

			Importance of habitat by life stage (ACFHP)
Habitat Name	Habitat Vulnerability Rank (HVCA)	Species	Eggs/Larva	Juvenile/YOY	Adult	Spawning Adult	Species Vulnerability Rank (FCVA)
Mid-Atlantic native salt marsh	Very high	Blueback herring	NA	Moderate	NA	NA	Very high
	Very high	Pollock	NA	Moderate	NA	NA	Moderate
	Very high	Summer flounder	NA	High	Moderate	NA	Moderate
	Very high	Winter flounder	High	Moderate	NA	High	Very high
Marine/estuarine intertidal shellfish reef	Very high	Black sea bass	NA	High	High	NA	High
	Very high	Scup	NA	Moderate	Moderate	NA	Moderate
	Very high	Summer flounder	NA	Moderate	NA	NA	Moderate
	Very high	Winter flounder	NA	Moderate	NA	NA	Very high
Marine/estuarine subtidal shellfish reef	High	Black sea bass	NA	High	High	NA	High
	High	Summer flounder	NA	Moderate	NA	NA	Moderate
Marine/estuarine submerged aquatic vegetation	High	Alewife	Very high	Very high	NA	Very high	Very high
	High	Black sea bass	NA	High	NA	NA	High
	High	Scup	Very high	NA	NA	Very high	Moderate
	High	Summer flounder	NA	High	Moderate	NA	Moderate
Marine intertidal rocky bottom	High	Black sea bass	NA	High	High	NA	High
	High	Ocean pout	High	NA	High	Very high	High
Marine intertidal mud	High	Little skate	Very high	High	High	NA	Low
	High	Ocean pout	NA	NA	NA	NA	High
	High	Scup	Very high	High	NA	NA	Moderate
	High	Summer flounder	NA	High	High	High	Moderate
	High	Windowpane flounder	NA	High	High	NA	Low
	High	Winter flounder	Very high	High	High	Very high	Very high
Marine intertidal sand	High	Little skate	Very high	High	High	NA	Low
	High	Red hake	NA	High	NA	NA	Low
	High	Scup	Very high	High	NA	NA	Moderate
	High	Summer flounder	NA	High	High	High	Moderate
	High	Windowpane flounder	NA	High	High	NA	Low
	High	Winter flounder	Very high	High	High	Very high	Very high
Marine/estuarine kelp	High	Ocean pout	NA	Moderate	NA	NA	High
Estuarine intertidal rocky bottom	Moderate	Ocean pout	NA	NA	NA	Very high	High
Estuarine intertidal mud	Moderate	Winter flounder	Very high	NA	NA	Very high	Very high
Estuarine intertidal sand	Moderate	Winter flounder	Very high	NA	NA	Very high	Very high
Estuarine subtidal mud	Moderate	Winter flounder	Very high	NA	NA	Very high	Very high
Riverine sand	Moderate	Alewife	Very high	Very high	NA	Very high	Very high

Shelfwide Indicators

Seasonal SST anomaly

Seasonal sea surface temperature anomalies for 2019 over the Northeast US Shelf.

Long-term SST

Average annual sea surface temperature (SST) over the Northeast US Shelf.

GSI

Notes

Index representing the north wall of the Gulf Stream. Positive values represent a more northerly Gulf Stream position.

Warm Core Rings

Warm core ring formation on the Northeast US Shelf.

NERRs water quality

Potentially possible to get map like this for DO, chl and nitrogen. Not this year though.

I’ve asked for the total number of events per year.